Valve-controlling mechanism.



J. N. HUSHER.

VALVE CONTROLLING MECHANISM.

APPLICATLOM HLED JAN. 12. 1915- RENEWED MAY 28, IBM).

Patented Dec. 80,1919.

2 SHEETS-SHEET 1.

FIGJ

J. N. HUSHER.

VALVE CONTROLLING MECHAN|SM.

APPLICATION FILED JAN. 12 I915- RENEWED MAY 28,1919.

1 326,402. Patented Dec. 30; 1919.

2 SHEETS-SHEET 2.

WITNESSES i l E reruns union.

JOHN Ill. IZUSHEF-ft, OF IVIUIJESS 33', PENNSYLVANIA.

VALVE-CONTRGLLING lltECIE-IANISM.

reac es Application filed January 12, 1915, Serial No. 1,883.

To all whom it may concern:

Be 1t known that l, dorm ll. citizen of the United cit-ates, and

llusnnn, a resident or Monessen, 1n the couu ty of ll estinoreland and State of Pennsylv; nia, have invented a new and useful Improvement in Valve- Controlling hlechanism; and I do hereby declare the following to be a full clear, and exact description thereof.

lltly invention relates to valve controlling mechanism adapted more particularly for us in connection with a condenser such as illustrated and described in a patent granted to me February 2, 1915, No. 1,127,252, in which there is a thermostatic arrangement for closing the valve leading from the water-supply to the condenser.

The object of my invention is to provide an eliicient and simple controlling device whereby an ordinary butterfly-valve in the water-supply pipe may be auton'iatically controlled to furnish the proper amount of water to the condenser according to the supply of exhaust steam admitted to the condenser.

In the accompanying drawings, Figure l is a vertical sectional view of a condenser showing my invention applied thereto, the valve controlling device not being shown in section; and Fig. 2 is an enlarged view of the valve mechanism partly in section.

In the drawings, Fig. 1 embodies he condenser, which forms the subject matter of a separate application above referred to. The nun'ieral 2 designates a suitable casing mounted on a standard or support 8. steam-pipe l leading from the exhaust o the engine communicates with the GEES-1L n for the admission of steam thereto. An

1njector-pipe 5 leading from a suitable watersupply enters the casing 2 at the upper end thereof. Within the casing 2 is the red 6, which is fined as at '7 at its lower end, and the upper end of vsaid rod is connected to the lever 8 :fulcrunied at 9 on the support 10 outside of said casing 2. A rod 11 is COilnected to the opposite end of the lever 8, said rod extending down into the casing and connected at its lower end to the lever 12, fulcrumed at 13. A rod 1% is connected to the opposite end 01" the lever 12, said rod extending up through the casing and connected at its upper end to the lever 15, fulcrumed at 16 A rod 17 is connected to the opposite end of the lever 15, and said rod is connected at its lower end to the arm 18 of an 0rdi- Specification of Letters Patent.

Renewed May 28, 1919. Serial No. 300,479.

nary valve 19. This valve 19 is located in the pipe 20, which at its lower end is connected to the injector-pipe 5, and at its up per end to the port 21 leading to the lower end or the cylinder The cylinder 22 is surrounded with the water-jacket 24:, and a pipe'25 connects said water-jacket with the pipe 5.

l Vithin the cylinder is the piston 26. A piston-rod 27 is connected with the piston 26. A erosshead 28 at the lower end of said piston-rod engages the guides 29 in the shirt 80, which is secured to the pipe 5 by means of the lJ-SllitPQCl bolts 01.

A. link 32 connected with the piston-rod 27 is connected at its lower end to the arm 33, said arm being connected to the ordinary butterfly-valve in the pipe 5. A weight 35 is connected to the outer end of the arm 33. l

A series of spirally arranged openings 36 are provided in the cylinder 22, said openings forming communi ation between said cylinder and the water-jacket 2st, and said openings are controlled by needle-valves 37 engaging openings 38 arranged to correspend with the openings 36. In this manner. the size of the openings 36 may be accurately controlled.

Then the exhausteteam from the engine is passing thron 1 the'pipe 4c into the con denser, the butterfly-valve 34 will be open to eerrnit the water to pass by the pipe into the condenser. The water by its co oling action condenses the steam in the ordinary manner 0t jet-condensers; but it the load on the engine is reduced, the fixed rod 6 cools accordingly, and as said rod is held in fixed position its lower end, the contraction of said rod will pull down on one end of the lever S, and will, thereby, lift the rod 11. This will act through the lever 12 tolower lhe rod 14:, and through the lever 15, raise the rod 17. The arm 18 of the valve will be operated to admit water by the pipe 20 through the port 21 into the lower end of the cylinder 22. This will act to elevate the piston 28, and as said piston ascends, the linlt 32 will raise the arm 33, and the butter fly-valve 34 will be moved toward closed position. The amount of upward movement or the piston 26 and accordingly of the valve will 36 all wed to escape through said openings; and the liieight to which the piston 26 depend upon the size or the openand the amount of water that isascends is controlled by the combined area of the openings 36, which are passed by the piston in its ascent. When the piston has ascended to a point where the combined area of the openings 36 passed by said piston is equal to the area of the pipe 20, the piston will be balanced and the water will fiow through the openings uncovered by the piston into the water-jacket 24L, whence it passes by the pipe 25 into the pipe 5. As long as the supply of exhaust-steam is such as to cause the contraction of the rod 6 in the manner above described, the piston 26 will remain in this position and the valve 34 will be in position to. admit the proper amount of water to the condenser. If, however, the steam should be entirely out ofi, the piston 26 would rise to a higher point and so completely close the valve and cut oii the water supply to the condenser.

When the engine is'again put in operation and the exhaust-steam is admitted to the condenser, the rod 6, instead of contracting, will expand, and through the connections described, this will close the valve 19 and the weight 35 will act to lower the piston 26 and open the butterfly valve 34:. The device is thus very sensitive and accurate in its control of the valve 34 so that when once the size of the openings 36 has been determined to correspond to the amount of expansion and contraction which takes place in the rod 6, the supply of water to the condenser is controlled with great accuracy;

and when once the proper adjustments have been made, the device works automatically and without further attention.

By my invention, I am able to employ an ordinary butterfly-valve, which is one of the simplest forms of valve and liable to the least amount of wear, and, consequently, from an economical standpoint, effects a great savlng.

What I claim is:

1. The combination with a condenser having steam and water-inlets and thermostatic device, of a butterfly-valve controlling the water-inlet, a cylinder havin spirally arranged openings, a piston in said cylinder moving over said openings, and whose ascent is controlled by the combined area of said openings passed by said piston, connections between said piston and said butterfiy-valve, a pipe-system for supplying fluid to the lower end of said piston, a valve in san plpe-system, and connections between said last-named valve and said thermostatic device.

2. 'i he combination with a condenser having steam and water-inlets and a thermostatic device, of a butterfly-valve controlling the water-inlet, a cylinder having spirally arranged valve controlled openings, a water-jacket with which said openings communicate, a piston in said cylinder moving over said openings, and whose ascent is controlled by the combined area of said open ings passed by said piston, connections between said piston and said butterfly-valve, a pipe system for supplying liquid to the lower end of said piston, a valve in said pipe-system, and connections between said valve and said thermostatic device.

3. The combination with a condenser having steam and water inlets and a thermostatic device, of a butterfly-valve controlling the water inlet, a cylinder havin spirally arranged openings, a piston in said cylinder moving over said openings, and whose ascent is controlled by the combined area of said openings passed by said piston, connections between said piston and said butterfly-valve, a pipe communicating with the water inlet below said butterfly-valve and communicating with the lower end of said cylinder, a valve controlling said pipe, and connections between said valve and said thermostatic device.

t. The combination with a condenser having steam and water inlets and a thermostatic device, of a butterfly-valve controlling the water-inlet, a cylinder having spirally arranged openings, a piston in said cylinder moving over said openings, and whose as cent is controlled by the combined area of said openings passed by said piston, connections between said piston and said butterfiy-valve, a pipe for supplying fluid to the lower end of said piston, a valve in said pipe, connections between said last-named valve and said thermostatic device, and a weight connected to said piston.

In testimony whereoi I the said JOHN N. HUsHER have hereunto set my hand.

JOHN N. HUSHER.

Witnesses:

Rom". D. Torrnn, JOHN F. WILL. 

